title: Tumor necrosis factor, interleukin-1 and beta 2-microglobulin levels in chronic hemodialysis patients.
abstract: We measured tumor necrosis factor (TNF alpha), interleukin-1 (IL1-B), and beta-2 microglobulin (B2M) levels in 10 chronic hemodialysis patients before and during dialysis with six different dialysate/dialyzer combinations. The mean pre-dialysis serum level of B2M was 23.4 +/- 11.1 mg/L (nl less than 3 mg/L). There was no significant effect of hemodialysis with any dialysate/dialyzer combination on intradialytic serum B2M levels. Five patients had detectable pre-dialysis serum levels of TNF alpha (greater than 40 pg/ml) at least once and 2 had detectable levels prior to all dialyses. Six patients had detectable pre-dialysis serum levels of IL1-B (greater than 20 pg/ml) at least once, and 2 had detectable levels prior to all dialyses. Serum TNF alpha, IL1-B and B2M levels were not significantly correlated with one another. Our data do not support the hypothesis that blood-membrane interactions significantly affect circulating levels of TNF alpha, IL1-B or B2M. Chronic high level elevations of plasma IL1-B and TNF alpha are not uniformly observed in hemodialysis patients, arguing against a role for these substances as systemic uremic toxins.
authors.affiliation: Medical College of Georgia, Augusta.
authors.forename: R J
authors.initials: RJ
authors.lastname: Caruana
authors.forename: S A
authors.initials: SA
authors.lastname: Lobel
authors.forename: M S
authors.initials: MS
authors.lastname: Leffell
authors.forename: H
authors.initials: H
authors.lastname: Campbell
authors.forename: P L
authors.initials: PL
authors.lastname: Cheek
mesh_terms: D000085:Acetates; D001639:Bicarbonates; D002482:Cellulose / Q000031:analogs & derivatives; D015314:Dialysis Solutions; D005260:Female; D006801:Humans; D007375:Interleukin-1 / Q000032:analysis*; D008297:Male; D008567:Membranes, Artificial; D008768:Methylmethacrylates; D008875:Middle Aged; D006435:Renal Dialysis; D014409:Tumor Necrosis Factor-alpha / Q000032:analysis*; D001613:beta 2-Microglobulin / Q000032:analysis*
chemical_list: D000085:Acetates; D001639:Bicarbonates; D015314:Dialysis Solutions; D007375:Interleukin-1; D008567:Membranes, Artificial; D008768:Methylmethacrylates; D014409:Tumor Necrosis Factor-alpha; D001613:beta 2-Microglobulin; C005062:acetylcellulose; D002482:Cellulose; C009865:cuprammonium cellulose